Does the Bible Contradict Itself?

[Undeceived]

How is knowing someone's decision the same as deciding for them?

Your God created me knowing that I would make the decision to deny him, his son, and the ever elusive holy ghost. God knew my punishment and knew my future decisions, but created me anyway. Where exactly was my choice in this scheme?

You say he knew your "decisions". That sounds like a choice to me. Keep this argument on an individual basis. You are not one in a slushpile of social security numbers. There is no other version of you who would choose differently. You are you, God made you, and you make your choice. God did decide the number of people who would ultimately accept or reject him, but he did not decide individually for each person. There's a difference. One is the individual. One is humanity. Humanity did not have free will to determine which individuals make it up--I suppose that is your argument.
Now the question why he chose so many to disbelieve is not ours to answer. Perhaps he created only as far as personalities, letting them run their own course. Perhaps position in life helps determine the choice--in which case it would be impossible to have all believers because there would always be that poor child with neglectful parents. The problem in speculating why is that we do not entirely know what leads a person to choose God or accept him. What are the factors? Is it personality? Social standing? God's sovereign choice? The latter is strongest. Romans 9:19-21:

It does not, therefore, depend on human desire or effort, but on God’s mercy. For Scripture says to Pharaoh: “I raised you up for this very purpose, that I might display my power in you and that my name might be proclaimed in all the earth.” Therefore God has mercy on whom he wants to have mercy, and he hardens whom he wants to harden.
One of you will say to me: “Then why does God still blame us? For who is able to resist his will?” But who are you, a human being, to talk back to God? “Shall what is formed say to the one who formed it, ‘Why did you make me like this?’” Does not the potter have the right to make out of the same lump of clay some pottery for special purposes and some for common use?

You might read into the verse and think, "Why shall I try if God has condemned me already?" But in reality you would not believe he has condemned you because you do not believe he exists. If you believed he exists, you would be one of those pottery "for special purposes". And maybe you will be. The moment you believe the verse is the moment you become one of his elect.